COBOL Manual for TNS and TNS/R Programs

Procedure Division
HP COBOL Manual for TNS and TNS/R Programs—522555-006
8-60
Simple Conditions
If the description of the tested item does not indicate the presence of an
operational sign, the item belongs to the numeric class only if:
°
The content of the item is numeric (consists entirely of the digit characters 0
through 9 ).
°
No operational sign is present.
If the description of the tested item indicates the presence of an operational sign,
the item belongs to the numeric class only if:
°
The content of the item is numeric (consists entirely of the digit characters 0
through 9 ).
°
The item is not described as USAGE DISPLAY, and the content of the item
consists entirely of a valid representation for the usage. If a PICTURE clause is
specified, its numeric value is within the range of values implied by the
PICTURE clause.
•
ALPHABETIC and NOT ALPHABETIC
You cannot use the ALPHABETIC and NOT ALPHABETIC tests with a numeric
data item. Normally, the tested item belongs to the alphabetic class only if its
content consists entirely of some combination of the alphabetic characters A
through Z, a through z, and space. When the CHARACTER-SET clause specifies
a program character set other than USASCII or UK, the set of characters that
constitute the alphabetic class is extended as appropriate (see OBJECT-
COMPUTER Paragraph).
•
ALPHABETIC-LOWER and NOT ALPHABETIC-LOWER
You cannot use the ALPHABETIC-LOWER and NOT ALPHABETIC-LOWER tests
with a numeric data item. The tested item belongs to the alphabetic-lower class
only if its content consists entirely of the lowercase alphabetic characters a
through z and space. When the CHARACTER-SET clause specifies a program
character set other than USASCII or UK, the set of characters that constitute the
alphabetic class is extended as appropriate (see OBJECT-COMPUTER
Paragraph).
•
ALPHABETIC-UPPER and NOT ALPHABETIC-UPPER
You cannot use the ALPHABETIC-UPPER and NOT ALPHABETIC-UPPER tests
with a numeric data item. The tested item belongs to the alphabetic-upper class
only if its content consists entirely of the uppercase alphabetic characters A
through Z and space. When the CHARACTER-SET clause specifies a program
character set other than USASCII or UK, the set of characters that constitute the
alphabetic class is extended as appropriate (see OBJECT-COMPUTER
Paragraph).